Honestly not sure what to make of this. There’s arguments both ways. Synoptically this is pretty awful for snow with that rapid high pressure retreat and the pressure falls mostly being to the west rather than southeast when redevelopment is attempting my to take place when we get a typical front ender…however, this antecedent airmass is really strong so there’s a case to be made for the models trying to flush that high a little too quickly. If it hangs back even a couple hours longer than models think, then it’s going to bust positive for snow.
I’d prob still hedge mostly on the lower side of guidance but I would put a little bit of weight on the HRRR/3km type solutions. I do think there should be a few hours of moderate to heavy snow even down in CT at the start. Sfc temps may dictate how well that accumulates. If the heaviest stuff is at 33-34F then it won’t be that efficient obviously.
It’s a semi-interesting nowcast. We can see how the short term guidance keeps trending today. Esp this afternoon. I will say that the last 4-5 cycles of HRRr keep slowing the high retreat. 15z coming in right now is doing it again.